(19)

(11)

EP 2 229 274 A1

(12)

(43) Date of publication: 22.09.2010 Bulletin 2010/38 (21) Application number: 07849404.4 (22) Date of filing: 10.12.2007

(51) International Patent Classification (IPC):  B29D 30/38(2006.01) B29D 30/46(2006.01) (86) International application number: PCT/IB2007/055002 (87) International publication number: WO 2009/087428 (16.07.2009 Gazette 2009/29)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (71) Applicant: Pirelli Tyre S.P.A. 20126 Milan (IT)	(72) Inventors: AMURRI, Cesare Emanuele I-20156 Milano (IT) MARCHINI, Maurizio I-20126 Milan (IT) (74) Representative: Brasca, Marco  Bugnion S.p.A. Viale Lancetti, 17 20158 Milano 20158 Milano (IT)